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Words related to poisonous

poi·son·ous
P p

  • hemlock

    a poisonous plant, Conium maculatum, of the parsley family, having purple-spotted stems, finely divided leaves, and umbels of small white flowers, used medicinally as a powerful sedative.

  • phosphorus

    Chemistry. a solid, nonmetallic element existing in at least three allotropic forms, one that is yellow, poisonous, flammable, and luminous in the dark, one that is red, less poisonous, and less flammable, and another that is black, insoluble in most solvents, and the least flammable. The element is used in forming smoke screens, its compounds are used in matches and phosphate fertilizers, and it is a necessary constituent of plant and animal life in bones, nerves, and embryos. Symbol: P; atomic weight: 30.974; atomic number: 15; specific gravity: (yellow) 1.82 at 20°C, (red) 2.20 at 20°C, (black) 2.25–2.69 at 20°C.

  • poison

    a substance with an inherent property that tends to destroy life or impair health.

  • abrin

    a highly poisonous compound found in the seed of the Indian liquorice (Abrus precatorius)

  • acetonitrile

    a colourless organic chemical, CH3CN, used chiefly as a solvent

  • aconite

    any of various N temperate plants of the ranunculaceous genus Aconitum, such as monkshood and wolfsbane, many of which are poisonous
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